In the following position, whites gives up seven men at the cost of seven tempos to the black opponent. In other words, white can make seven moves before black can make any moves and win.
So, white is going to deliver a mate on f7 with a pawn that must be protected by another white pawn on either g6 or e6. So white just advances the e and g pawns to the sixth rank and captures at f7 with one of them.
Yes, that is correct. I remember this certain position in a chess book but I don’t remember the title of the book. The author claimed that Capablanca lost $50 saying that it was impossible for white to win. I find that statement hard to believe and have never been able to verify it to be true or not.
No chess engine will be able to handle this, as there may be no provision to lose tempos but you may be able to record it on chess engine like this
1.e4 Nc6 2.g4 Na5 3.g5 Nc4 4.e5 Nb6 5.g6 Na4 6.e6 Nc5 7.exf7#
First white has to achieve e6 and g6 and on 7th move mate.
to achieve e6 and g6 the moves are e4,e5,e6,g4,g5 and g6.
to consider permutation let us select any 3 places in 6 moves for “e”moves. The number of selections is 6C3. Permutation among “e” moves is not possible since e4 should precede e5 and e5 must precede e6. in each of these selections 3 caccant places are filled in only 1 way by g4,g5 and g6.Therefore the no. of permutations is 6C3=6!/3!/3!=20.7th move can be in any one of the 2 moves e6xf7# or g6xf7# Therefore the total no.of permutations is 20*2=40.
Here, black’s king is found with only one degree of freedom: he can safely move to e4. White forces black to move his king to this square by checking with his pawn. Black must capture the pawn and white then skewers the king with the bishop (h7): checkmate.
Bishop to h7 prior to checking with the pawn is premature allowing the king to escape to e6.
n.b. The pieces in the a, b and c files are irrelevant.
Again a mate in 2, Prof Bhatt ?
1. e3-e4+ Kxe4
2. Bh7 mate
1.e3-e4 + Kxe4
2.Bh7 X
In the following position, whites gives up seven men at the cost of seven tempos to the black opponent. In other words, white can make seven moves before black can make any moves and win.
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/4K3 w kq – 0 1
Just another easy puzzle….
Am I reading that FEN right? It looks to me the starting position minus every white piece but the king himself.
Never mind, I think understand the set up now.
So, white is going to deliver a mate on f7 with a pawn that must be protected by another white pawn on either g6 or e6. So white just advances the e and g pawns to the sixth rank and captures at f7 with one of them.
Yes, that is correct. I remember this certain position in a chess book but I don’t remember the title of the book. The author claimed that Capablanca lost $50 saying that it was impossible for white to win. I find that statement hard to believe and have never been able to verify it to be true or not.
No chess engine will be able to handle this, as there may be no provision to lose tempos but you may be able to record it on chess engine like this
1.e4 Nc6 2.g4 Na5 3.g5 Nc4 4.e5 Nb6 5.g6 Na4 6.e6 Nc5 7.exf7#
What will be the number of permutations of moves to achieve this?
First white has to achieve e6 and g6 and on 7th move mate.
to achieve e6 and g6 the moves are e4,e5,e6,g4,g5 and g6.
to consider permutation let us select any 3 places in 6 moves for “e”moves. The number of selections is 6C3. Permutation among “e” moves is not possible since e4 should precede e5 and e5 must precede e6. in each of these selections 3 caccant places are filled in only 1 way by g4,g5 and g6.Therefore the no. of permutations is 6C3=6!/3!/3!=20.7th move can be in any one of the 2 moves e6xf7# or g6xf7# Therefore the total no.of permutations is 20*2=40.
Here, black’s king is found with only one degree of freedom: he can safely move to e4. White forces black to move his king to this square by checking with his pawn. Black must capture the pawn and white then skewers the king with the bishop (h7): checkmate.
Bishop to h7 prior to checking with the pawn is premature allowing the king to escape to e6.
n.b. The pieces in the a, b and c files are irrelevant.